Analysis of a Steel Frame Structure in Loess Area for Correcting Deflection and Stopping Tilting Reinforcement

DOI: https://doi.org/10.62517/jcte.202406301

Author(s)

Shengjun Dong1, Guobing Wang2,*, Dangtuan Yang3

Affiliation(s)

1Gansu Province Building Materials Research and Design Institute Limited Liability Company, Lanzhou, Gansu, China 2Geotechnical Engineering Research Institute, Xi'an University of Technology, Xi'an, Shaanxi, China 3Gansu Jiaoda Engineering Testing Technology Co., Ltd., Lanzhou, Gansu, China *Corresponding Author.

Abstract

Currently, Surface water infiltration saturates the soil layer of the building foundation, is causing uneven settlement of the pile foundation of the building, resulting in obvious tilting and deformation of the upper main structure. The primary objective of this study is to taking the corrective and stop-tilting reinforcement of a steel frame structure in the humid loess area as the research background, the existing pile foundation is corrected and strengthened by adopting grouted flower steel pipe piles, and the analytical results show that the settlement and deformation of the foundation after grouted flower steel pipe piles reinforcement reduces from 50.3% to 92.83%. This method achieves the purpose of correcting deflection and stopping tilting reinforcement, and meets the bearing capacity requirements of the foundation of the building, and the construction is convenient.

Keywords

Collapsible Loess; Existing Steel Frame Structure; Pile Foundation; Grouting Perforated Steel Pipe Pile; Anti Inclination Rectification and Reinforcement

References

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